# Nudging-based data assimilation of the turbulent flow around a square cylinder

@inproceedings{Zauner2021NudgingbasedDA, title={Nudging-based data assimilation of the turbulent flow around a square cylinder}, author={Markus Zauner and Vincent Mons and Olivier Marquet and Benjamin Leclaire}, year={2021} }

We investigate the prediction of the turbulent flow around a canonical square cylinder at Re = 22000 solving the unsteady Reynolds-averaged Navier-Stokes (URANS) equations. The limitations of URANS modelling are overcome through the application of a data assimilation technique involving a feedback control term, allowing to drive the URANS predictions towards reference data. Using regularly-spaced temporally-resolved reference data that are extracted from DNS, we assess the abilities of the data…

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